Home / 3,914.22-5,399.29-2,850.56

Finding the Fourth Proportional to 3,914.22, 5,399.29 and 2,850.56

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Solution

The fourth proportional to 3,914.22, 5,399.29 and 2,850.56 is: 3,932.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.22 : 5,399.29 = 2,850.56 : x
  2. Step 2: Convert to fraction form
    3,914.22/5,399.29 = 2,850.56/x
  3. Step 3: Cross multiply
    3,914.22x = 5,399.29 × 2,850.56
  4. Step 4: Simplify right side
    3,914.22x = 15,390,996.92
  5. Step 5: Solve for x
    x = 15,390,996.92/3,914.22
  6. Step 6: Final answer
    x = 3,932.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.